Original 42 Double Sided Porcelain Shell Gasoline Sign. Hard to find sign in nice condition. Manufacture stamp in the bottom right reads: Property Shell Petroleum Corp. No touch ups or repairs. Check out my other sign listings for sale. The item “Original 42 1929 Double Sided Porcelain Shell Gasoline Sign Motor Oil Can” is in sale since Thursday, June 27, 2019. This item is in the category “Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs”. The seller is “popeyes2009″ and is located in Chandler, Arizona. This item can be shipped to United States.